1250513355 has 32 divisors (see below), whose sum is σ = 2462552064. Its totient is φ = 527688576.

The previous prime is 1250513351. The next prime is 1250513377. The reversal of 1250513355 is 5533150521.

It is not a de Polignac number, because 1250513355 - 2² = 1250513351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1250513351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 456699 + ... + 459428.

It is an arithmetic number, because the mean of its divisors is an integer number (76954752).

Almost surely, 2^1250513355 is an apocalyptic number.

1250513355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1250513355 is a deficient number, since it is larger than the sum of its proper divisors (1212038709).

1250513355 is a wasteful number, since it uses less digits than its factorization.

1250513355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916155.

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 1250513355 is about 35362.5982501286. The cubic root of 1250513355 is about 1077.3647901427.

Adding to 1250513355 its reverse (5533150521), we get a palindrome (6783663876).

It can be divided in two parts, 1250 and 513355, that added together give a triangular number (514605 = T₁₀₁₄).

The spelling of 1250513355 in words is "one billion, two hundred fifty million, five hundred thirteen thousand, three hundred fifty-five".